Screen corrupted every 215th pixel
oldium.pro at seznam.cz
Mon Jan 3 13:13:23 PST 2011
I have a really strange problem. I have every 215th column (in pixels)
corrupted - when I draw two vertical lines with 214 pixels in between in Gimp
and move the window on the desktop to the specific position, I don't see any
line (the column is filled with the background color). I see the problem in
both KDE applications and in Gimp (Gtk application), so I think this isn't a
toolkit problem. When I move any window, I see something like "missing"
columns clearly (text has no vertical line, icons miss/repeat one column).
It starts on the 214th column (counted from 0) and after every 215 pixels I
see the problem.
I cannot attach a screenshot, because screenshot taken with Ctrl+Printscreen
shows no problem.
It looks like the screen is split into stripes with 215 pixels (plus minus
pixel) and every one has somethinh like off-by-one problem.
I'm using this software:
mesa Git master (r600 gallium driver)
libdrm Git master
xorg-video-ati Git master
kernel 2.6.34-rc5, drm-next branch from airlied/drm-2.6.git
Does anybody know where the problem could be?
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